Improved machine for removing- the burrs from railroad-chairs



lposition while being operated upon.

(limited tatrz gatrnt dtfijrr.

DAVID EYNON, OF RICHMOND, VIRGINIA.

Letters Patent No, 90,249, dated .Ma/y 18, 1869.

The Schedule referred to in these Letters Patent and making part of the same.

To all 'whom t't 'ma/y cancer-n.-

Be it known that I, DAVID EYNON, of Richmond, in the county of Henrico, and the State of Virginia, have invented a new and useful Improveinent in Machines for Removing the Burrs from Raih'oad-Chairs; and I do hereby declare that the following isa full,-

, clear, and exact description of the same, reference the burrs from the ends of railroad-chairs, caused by sawing them from lthe bars into which they are first drawnI and It consists in the construction and arrangement of the part-s'of such machine, as will be more fully desciibed he'reafter. j

A, in the drawings, represents a frame of metal or of other suitable material, consisting of a bed-plate, having two or more standards, A', varising therefrom, which have, in their upper or outer ends, boxes for the reeeption of a shaft.

B B represent brackets, which are secured to the standards A' and A', and which extend, first, in a horizontal position, and then in a Vertical direction, for a distance snflicient to perniit the guide O to be secnred to the inner i'aces of the Vertical portion thereof, such guide extending equal distances above and .below the cntters D.

O O represent the guides for holding the chairs in They consist of bars of iron, cast upon or otherwise secured to the inner faces of the brackets B B, and are so arranged that they will receive the ends of the chair, and direct the same to the cutters D D, in such a manner that the cutters shall enter the cavity formed in such chair for the reception of the rail, and remove any burr that may have been formed thereon, and'at the same time bevel the edges of such aperture to the extent which may be necessary to cause the rail to enter 'the same with facility.

D D represent cut-ters, which are to be made of steel, or other suitable material, and fluted or grooved upon their surfaces, which are to be of such form as to t the apeiture in the chairs, the object of the fiuted or grooved surfaces .being to form cutting-edges upon such'surfaces, for the purpose above described.

E represents a shaft, which is to be placed in the bearings formed in the standards A', beyond or outward fromwhich it extends for a distance snificient to receive upon its outer ends the cuttefrs D D, and retain them in their proper position with reference to the brackets B B and guides 0 O.

F represents a pulley, which is to be secured to the shaft E, for the purpose of receiving a belt for rotating said shaft and cutters.

I have described my improved machine as a double one, or as having a cutter and guide at each end of the shaft E, which, as a matter of economy and con' venience, is the plan I prefer; but` it is appareut that one of the braclrets, guides, and cutters may be omitted if desired, without departing' from the\ principles of l my invention.

The operation of this device is as follows:

The parts having been coustrncted and a'rranged as shown in fig. l of the (lrawings, and motion imparted to the cutters l), the chair, which is in the condition represented by fig. 2 of the drawings, is taken by the operator, who presents one of its ends to the cutter, its lower surface coming in contact with the Vertical face of bracket B, while its edge is resting upon guide C, when it is to be pressed toward the cutter until the burr has been removed, and a slight chamfer formed upon its edges, when it is reversed, and its opposite end is presented to the cutter, and the operation of bnrring and c-hamfering is repeated, causing the chair to appear as indicated by lig. 3 of the drawings.

Having' thns described my invention,

lVhat I claim, and desire to secnrc by Letters Patcut, is-

1. The combination of a cntter, D, forined for burring the inside of railroad-chairs, and the guide O, for holding the chair while being snbjected to the action of the cut-ter, snbstantially in the manner and for the purpose set forth. i

2. The combination and arrangement of the shaft E, guide C, bracket B, and cutter D,'substantially as shown and described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses. i

DAVID EYNON.

Witnesses:

D. P. HonLoWAY, A. RUPPERT. 

